However Apple lawyer William Lee pounced after Denison described Samsung's "hyperbolic," management style as Samsung's lawyers referred to an internal email that described a 'crisis of design' at the company.

The difference between the iPhone and Samsung's products is "heaven and earth," managers at the South Korean electronics conglomerate said in an internal email distributed at the company after the release of Apple's iPhone that has become a key part of Apple's case.

Objections from Samsung's lawyers were repeatedly overruled by U.S. District Court Judge Lucy Koh, who noted Samsung ‘opened the door,’ to such questions, since Denison discussed the email earlier in his testimony.

Lee took the opportunity to have Denison walk through the email in front of jurors

"All this time we've been paying all our attention to Nokia, and concentrated our efforts on things like Folder, Bar, Slide, yet when our [product] is compared to the unexpected competitor Apple's iPhone, the difference is truly that of Heaven and Earth," according to the email. "It's a crisis of design."

"Can you show me the document that shows me that there's a crisis in design compared to Nokia?" Lee asked Denison.

"No I can't," Denison said.

"The only documents that you can identify from Samsung that refer to a crisis in design... refer to the iPhone," Lee said.